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The term retrograde is from the Latin word retrogradus – "backward-step", the affix retro-meaning "backwards" and gradus "step". Retrograde is most commonly an adjective used to describe the path of a planet as it travels through the night sky, with respect to the zodiac, stars, and other bodies of the celestial canopy. In this context, the ...
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis .
Mercury retrograde, which happens three to four times a year, is not only the most common retrograde of all; it’s arguably the most well-known celestial occurrence, too. And it’s an important one.
English: An astronomical explanation for Mercury's retrograde motion: the inner planet appears to retrace its steps a few times per year. Every planet does this, every year. In fact, there is a planet in retrograde for 75% of 2020.
Mercury is in retrograde when it appears to go backward in its orbit. According to astrologer Emily Ridout, that means complications surrounding communication and travel.
Mercury retrograde is here August 23rd through September 15th, 2023. Let me, a professional astrologer, break it down for you. So, What Does Mercury Retrograde Actually Mean?
Tali Edut, one half of The AstroTwins, ELLE’s resident astrologers, breaks down the basics.
In January 2022, CE-5 left L1 point for the lunar distant retrograde orbit (DRO) to conduct very-long-baseline interferometry tests in preparation for the next stage of China's lunar exploration program. [6] [7] According to The Space Review (TSR), this maneuver was depicted in Chinese government and academic documents. [2]